Finite Group DatabasebetaFinite Group Databasebeta| order | 256 |
| nilpotency class | 4 |
| isoclinism | isoclinic class of #13357 |
| automorphism | Aut(G) order 4096 |
| homology | Abelianization (H1) = C23 · Schur multiplier (H2) = C24 |
No aliases for this group.
| subgroup | G/H | |
|---|---|---|
| center, socle | C22 | B(4,𝔽2) |
| commutator, Frattini, cosocle | C22×Q8 | C23 |
| LCS | G ▷ C22×Q8 ▷ C22 ▷ C2 ▷ C1 | |
| UCS | C1 ◁ C22 ◁ C23 ◁ C22×Q8 ◁ G | |
| LECS | G ▷ C22×Q8 ▷ C22 ▷ C2 ▷ C1 | |
386 conjugacy classes of subgroups; only the 49 normal subgroups are shown.
This group has 386 conjugacy classes of subgroups — too many to draw. Only its 49 normal subgroups are shown.
Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.
| minimal degree | μ(G) = 20 |
| transitive degree | μt(G) = 32 |
A minimal faithful permutation representation — 3 generators on 20 points:
(1,2)(3,4)(6,10)(7,14)(8,17)(11,19)(12,20)(13,15);(5,6)(7,15)(8,11)(9,13)(10,14)(12,17)(16,20)(18,19);(2,4)(6,11)(8,17)(10,19)(12,13)(15,20)(16,18)Polycyclic presentation:
2^8|d^2=h,f^2=h,b^a=bd,c^a=ce,d^a=dh,f^a=fgh,c^b=cf,d^b=dh,f^b=fh,g^b=gh,d^c=dg,f^c=fh,f^d=fh31 conjugacy classes — view the full character table.
| maximal subgroup of | #151146, #151147, #151192, … |
| maximal normal subgroup of | #151146, #151147, #151192, … |
| maximal quotient of | #142220, #142269, #142316, … |
Construct this group in GAP via the SmallGroups library:
gap> SmallGroup(256, 6345);